sumann reads the annotation
file specified by record and annotator and produces a tabular summary of
its contents, including the number of annotations of each type as well
the duration and number of episodes of each rhythm and signal quality.

Append summaries of beat and rhythm annotations to the specified
beat-table and rhythm-table files. The summaries for the specified record
are written as a single line in CSV (comma-separated value) format in each
file. If either file does not exist, it is created, and a header line containing
column names is written to it. If the -o option is omitted, a more easily
readable summary is written to the standard output instead.